Find the value of given expression. 

[76 – {90 ÷ 5 ⨯ (24 – 36 ÷ 3) ÷ 3}] 

$$3\sqrt{ {72.9\over0.4096}}$$ is equal to : 

The value of   $$ {(0.03)^2 - (0.01)^2}\over 0.03-0.01 $$

The simplified value of
$${{1\over 3}÷{1\over 3}×{1\over 3}\over{1\over 3}÷{1\over 3}of{1\over 3}}-{1\over 9}$$

What is the value of $${0.74×1.23×0.13\over (0.37)^{3}+(0.41)^{3}-8(0.39)^{3}}$$ ?

The value of $${\sqrt{40+\sqrt{9\sqrt{81}}} }$$ is

For what value of m will the system of equations 18x-72y+13=0 and 7x-my-17=0 have no solution?

What is the value of x $$ {0.081\over x}={0.09\over10}$$ ?